<template>
    <div>
      <!-- 搜索区域 -->
      <div class="search">
        <el-input placeholder="请输入用户名" @keyup.enter.native="load(1)" @keyup.esc.native="reset" style="width: 200px" v-model="userName"></el-input>
        <el-input placeholder="请输入评论内容" @keyup.enter.native="load(1)" @keyup.esc.native="reset" style="width: 200px" v-model="content"></el-input>
        <el-input placeholder="请输入订单编号" @keyup.enter.native="load(1)" @keyup.esc.native="reset" style="width: 200px" v-model="ordersNo"></el-input>
        <el-button type="info" plain style="margin-left: 10px" @click="load(1)">查询</el-button>
        <el-button type="warning" plain style="margin-left: 10px" @click="reset">重置</el-button>
      </div>
  
      <!-- 功能区域 -->
      <div class="operation">
        <el-button type="danger" plain @click="delBatch">批量删除</el-button>
      </div>
  
      <!-- 表格区域 -->
      <div class="table">
        <el-table :data="tableData" strip @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="55" align="center"></el-table-column>
            <el-table-column prop="id" label="序号" width="70" align="center" sortable></el-table-column>
            <el-table-column prop="content" label="评论" show-overflow-tooltip></el-table-column>
            <el-table-column prop="star" label="评分">
                <template v-slot="scope">
                <el-rate v-model="scope.row.star" disabled></el-rate>
                </template>
            </el-table-column>
            <el-table-column prop="userName" label="用户"></el-table-column>
            <el-table-column prop="businessName" label="商家"></el-table-column>
            <el-table-column prop="ordersNo" label="订单号" align="center"></el-table-column>
            <el-table-column label="操作" align="center" width="120" v-if="user.role === 'ADMIN'"   >
                <template v-slot="scope">
                <el-button size="mini" type="danger" plain @click="del(scope.row.id)">删除</el-button>
                </template>
            </el-table-column>
        </el-table>
  
        <div class="pagination">
          <el-pagination
              background
              @current-change="handleCurrentChange"
              :current-page="pageNum"
              :page-sizes="[5, 10, 20]"
              :page-size="pageSize"
              layout="total, prev, pager, next"
              :total="total">
          </el-pagination>
        </div>
      </div>
    </div>
  </template>
  
  <script>
  export default {
    name: "Comment",
    data() {
      return {
        tableData: [],  // 所有的数据
        pageNum: 1,   // 当前的页码
        pageSize: 10,  // 每页显示的个数
        total: 0,
        content: null,
        userName: null,
        ordersNo: null,
        fromVisible: false,
        form: {},
        user: JSON.parse(localStorage.getItem('xm-user') || '{}'),
        ids: []
      }
    },
    created() {
      this.load(1)
    },
    methods: {
      handleEdit(row) {   // 编辑数据
        this.form = JSON.parse(JSON.stringify(row))  // 给form对象赋值  注意要深拷贝数据
        this.fromVisible = true   // 打开弹窗
      },
      save() {   // 保存按钮触发的逻辑  它会触发新增或者更新
        this.$refs.formRef.validate((valid) => {
          if (valid) {
            this.$request({
              url: this.form.id ? '/category/update' : '/comment/add',
              method: this.form.id ? 'PUT' : 'POST',
              data: this.form
            }).then(res => {
              if (res.code === '200') {  // 表示成功保存
                this.$message.success('保存成功')
                this.load(1)
                this.fromVisible = false
              } else {
                this.$message.error(res.msg)  // 弹出错误的信息
              }
            })
          }
        })
      },
      del(id) {   // 单个删除
        this.$confirm('您确定删除吗？', '确认删除', {type: "warning"}).then(response => {
          this.$request.delete('/comment/delete/' + id).then(res => {
            if (res.code === '200') {   // 表示操作成功
              this.$message.success('操作成功')
              this.load(1)
            } else {
              this.$message.error(res.msg)  // 弹出错误的信息
            }
          })
        }).catch(() => {
        })
      },
      handleSelectionChange(rows) {   // 当前选中的所有的行数据
        this.ids = rows.map(v => v.id)
      },
      delBatch() {   // 批量删除
        if (!this.ids.length) {
          this.$message.warning('请选择数据')
          return
        }
        this.$confirm('您确定批量删除这些数据吗？', '确认删除', {type: "warning"}).then(response => {
          this.$request.delete('/comment/delete/batch', {data: this.ids}).then(res => {
            if (res.code === '200') {   // 表示操作成功
              this.$message.success('操作成功')
              this.load(1)
            } else {
              this.$message.error(res.msg)  // 弹出错误的信息
            }
          })
        }).catch(() => {
        })
      },
      load(pageNum) {  // 分页查询
        if (pageNum) this.pageNum = pageNum
        this.$request.get('/comment/selectPage', {
          params: {
            pageNum: this.pageNum,
            pageSize: this.pageSize,
            content: this.content,
            userName: this.userName,
            ordersNo: this.ordersNo
          }
        }).then(res => {
          this.tableData = res.data?.list
          this.total = res.data?.total
        })
      },
      reset() {
        this.content = null
        this.userName = null
        this.ordersNo = null
        this.load(1)
      },
      handleCurrentChange(pageNum) {
        this.load(pageNum)
      }
    }
  }
  </script>
  
  <style scoped>
  
  </style>